jonmortin's picture

Chewing Gum Lichen ?

Observed: 11th May 2013 By: jonmortin
Bristol Regional Environmental Records Centre
jonmortin’s reputation in Fungi and Lichensjonmortin’s reputation in Fungi and Lichensjonmortin’s reputation in Fungi and Lichens

Growing on the top of a sandstone wall


Caution: Do NOT use iSpot to identify fungi to eat!

Some fungi are very poisonous so a mistaken ID could have serious consequences.

Species interactions

No interactions present.


AlanS's picture

Chewing gum lichens?

As I said in another observation, I would only use the term "chewing gum lichen" when the lichen thallus is on pavement and looking like trodden chewing gum.

In this case it is on the top of a wall, and is a pretty typical rounded thallus as formed by numerous crustose species.

It seems to be a Lecanora or Lecania, but puzzling (to me). I would want to check microscopic characters before speculating.


AlanS's picture


Or perhaps I will speculate after all. The best candidate seemed to be Lecanora campestris and I have just been looking at some photographs I have of a diseased colony of this species. I think there is a match to the photograph here.

Even so, I think the ID is best left as Lecanora (genus).